/Engine/Source/Runtime/Core/Public/Internationalization/StringTableRegistry.h
Given anFText, try and find the table ID and key for it
bool FindTableIdAndKey ( const [FText](API\Runtime\Core\Internationalization\FText) & InText, [FName](API\Runtime\Core\UObject\FName) & OutTableId, [FString](API\Runtime\Core\Containers\FString) & OutKey ) const